Hay is a grass and a basic nutrient for livestock such as horses. Dreaming of hay could indicate nourishment. If you had to work hard to produce the hay in the dream, it could indicate feelings that hard work gives you the ability to provide for yourself and others. Dreaming of a needle in a haystack could indicate feelings of being lost in some area of your life. You may have an idea of what you are looking for, but it seems impossible to find it. Alternatively, hay could represent a soft and warm place to sleep. You may be searching for some warmth or comfort in your life. Sleeping on hay represents your ability to be resourceful and make the best use of the available resources you have.